MCQ
Carbon has zero oxidation number in
- A$CO$
- B$C{H_4}$
- ✓$C{H_2}C{l_2}$
- D$C{H_3}Cl$
$x + 2 - 2 = 0$; $x = 0\,\,in\,\,C{H_2}C{l_2}$.
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$B.E(N -N) = 159\, kJ\, mol^{-1}$,
$B.E(H -H) = 436\, kJ\, mol^{-1}$
$B.E.(N \equiv N) = 941\, kJ\, mol^{-1}$,
$B.E(N -H) = 398\, kJ\, mol^{-1}\, .......\,kJ\, mol^{-1}$